MIRROR of https://codeberg.org/catseye/Philomath : An LCF-style theorem prover written in C89 (a.k.a ANSI C)
Online platform to enable Logic students to write, verify, and store System L style Natural Deduction proofs with real-time proof-checking
MIRROR of https://codeberg.org/catseye/Maxixe : A simple proof checker
MIRROR of https://codeberg.org/catseye/Eqthy : A simple formalized language for equational proofs
Exposition of an LCF-style theorem prover for propositional logic in a Natural Deduction system
A prototypical proof checker and programming language based on illative combinatory logic
An implementation in Lambda-Prolog of the Minimalist Type Theory
Continuous Integration system that automatically diagnoses, patches, and validates code issues using AI-powered analysis and formal verification.
proof language based on https://en.wikipedia.org/wiki/Sequent_calculus and https://us.metamath.org/.
not noq
a proof checker and model checker for minimal propositional logic
An executable museum of logic: one system, one evidence file, Zig.
Certified frame-first SAT middleware — decide structured regions (2-SAT · GF(2) parity · counting) before CDCL, and independently verify every verdict (model replay · DRAT). A research harness for where SAT hardness lives.
Replayable Python protocol engine for checking time-bound future claims from canonical artifacts, with typed outcomes and audit trails.
Provio will be a step-by-step math proof checker
AI-assisted desktop app for auditing mathematical manuscripts, detecting proof issues, and generating reports.
A readable, self-checking CDCL SAT solver, preprocessor and encoding library. Every answer comes with a certificate.
proof-radar — validity cartography for informal mathematics: per-claim maps of where a result is proven, refuted, empirical, marginal, vacuous, or unprobed, with provenance and coverage.
A reproducible audit harness for mathematical LaTeX papers: deterministic scanner, schema-validated issue ledgers with mechanical quote verification, and a stage-gated final gate — driven by any MCP agent or the CLI.
Check DRAT/DRUP proofs of unsatisfiability inside your Python process. Zero dependencies, optional Rust accelerator.
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